December weather forecast
Metairie, LA

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Weather in December

As the year comes to a close, Metairie embraces the chills of December. The transition from autumn to winter is complete, culminating in an average low temperature of 52°F (11.1°C). Despite the turnout of the colder weather, Metairie ensures its residents have ample daylight hours to savor. The frequency of rainfall days experiences an uptick, a reminder of the impending wet season. Most notably, December witnesses a considerable increase in relative humidity, marking the highest recorded average of 78% for the year.

Temperature

December ushers in a minor alteration in Metairie's climate, with the average high-temperature moving from November's pleasant 68.9°F (20.5°C) to an enjoyable 63.3°F (17.4°C). In December, Metairie encounters an average low-temperature of 52°F (11.1°C) during the night.

Humidity

The most humid month is December, with an average relative humidity of 78%.

Rainfall

In Metairie, Louisiana, in December, it is raining for 7.2 days, with typically 0.71" (18mm) of accumulated precipitation. In Metairie, during the entire year, the rain falls for 104.1 days and collects up to 8.39" (213mm) of precipitation.

Daylight

With an average of 10h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:39 am and sunset at 5:00 pm. On the last day of December, in Metairie, sunrise is at 6:56 am and sunset at 5:11 pm CST.

Sunshine

December has the least sunshine of the year in Metairie, with an average of 5.1h of sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 3 in December suggests the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

What are December temperatures in Metairie?

The average high-temperature, in December, in Metairie, is 63.3°F (17.4°C), while the average low-temperature is 52°F (11.1°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is calculated to be 98.6°F (37°C).

What is the most humid month in Metairie?

December is the most humid month, with an average relative humidity of 78%.

What is the average humidity in December in Metairie?

In December, the average relative humidity is 78%.

How much does it rain in Metairie in December?

In Metairie, Louisiana, during December, the rain falls for 7.2 days and regularly aggregates up to 0.71" (18mm) of precipitation.

What is the month with the shortest days in Metairie?

December has the shortest days of the year, with an average of 10h and 18min of daylight.

What is the average length of the day in December in Metairie?

In Metairie, the average day length in December is 10h and 15min.

When are sunrise and sunset in December in Metairie?

In December, on the first day of the month, sunrise is at 6:39 am and sunset at 5:00 pm. On the last day of the month, in Metairie, Louisiana, sunrise is at 6:56 am and sunset at 5:11 pm CST.

What is the month with the least sunshine in Metairie?

The month with the least sunshine is December, with an average of 5.1h of sunshine.

How many hours of sunshine does Metairie have in December?

In Metairie, the average sunshine duration in December is 5.1h.

When is the lowest UV index in Metairie?

December is the month with the lowest UV index, with an average maximum UV index of 3.

How high is the UV index in December in Metairie?

In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Metairie, LA

Average temperature in December - Metairie, LA
  • Average high temperature in December: 63.3°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in December: 52°F

The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (47.8°F).

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Average pressure in December
Metairie, LA

Average pressure in December - Metairie, LA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).

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Average wind speed in December
Metairie, LA

Average wind speed in December - Metairie, LA
  • Average wind speed in December: 9.3mph

The windiest months (with the highest average wind speed) are February and April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

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Average humidity in December
Metairie, LA

Average humidity in December - Metairie, LA
  • Average humidity in December: 78%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Metairie, LA

Average rainfall in December - Metairie, LA
  • Average rainfall in December: 0.71"

The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is March (0.39").

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Average rainfall days in December
Metairie, LA

Average rainfall days in December - Metairie, LA
  • Average rainfall days in December: 7.2 days

The month with the highest number of rainy days is August (14.8 days).
The month with the least rainy days is November (4.5 days).

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Average daylight in December /
Average sunshine in December
Metairie, LA

Average daylight in December / Average sunshine in December - Metairie, LA
  • Average daylight in December: 10h and 2min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in December
Metairie, LA

Average sunshine days in December - Metairie, LA
  • Average sunshine days in December: 21.8 days

The month with the most sunshine days is November (24.6 days).
The month with the least sunshine days is August (10.3 days).

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Average UV index in December
Metairie, LA

Average UV index in December - Metairie, LA
  • Average UV index in December: 3

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in December
Metairie, LA

Average cloud cover in December - Metairie, LA
  • Average cloud cover in December: 45

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in December
Metairie, LA

Average visibility in December - Metairie, LA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Metairie, Louisiana, USA

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